Stenornis fossil map
Where fossils of Stenornis have been found, shown on the Earth as it looked about 30 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 30 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Prehistoric birds |
|---|---|
| Lived | 33.9–27.3 million years ago (Rupelian) |
| Periods | Paleogene |
| Family | Plotopteridae |
| Named by | Ohashi and Hasegawa 2020 |
| Fossil records | 1 occurrences at 1 locations (PBDB) |
| Found in | Japan |
| Rock formations | Jinnobaru |
About Stenornis
Stenornis is an extinct genus of Plotopteridae, a family of large-sized, flightless seabirds native from the North Pacific during the Paleogene and the earliest Neogene. The remains of Stenornis have been found in Oligocene rocks of the Jinnobaru Formation on Hikoshima and the Ashiya Group on Ainoshima, Japan.
Text in “About” is quoted from the Wikipedia article Stenornis (revision 1322578208), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q112733046.
